著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) E. M. Stein,"Singular Integrals and Differentiability Properties of Functions,",Princeton University Press,,,1970,,,,https://cir.nii.ac.jp/crid/1370567189701118600,